Feature: 1. DELICATE DESIGN: The battery tester is designed with an acrylic shell baffle, making the tester durable and beautiful. 2. TESTING DETAILS: The battery tester supports 1 to 24S lithium battery pack (battery voltage is between 2V and 4.5V), and the measurement accuracy of each string of battery voltage is about 0.003. 3. DATA DISPLAY: This battery tester displays each string voltage, total voltage, maximum string voltage, minimum string voltage, maximum voltage difference of battery pack, average voltage, balance voltage, battery string number. 4. SOUND ALARM: This battery tester has reverse connection, high voltage warning and prompt (more than 4.5V), low voltage (less than 2V). 5. CONVENIENT USING: The battery tester supports mixed plug (no need to start from B1), support Type c and DC power supply modes (DC5V), support Chinese and English switching, and use more convenient. Specification: Item Type: Battery Tester Material: Acrylic, PCB Battery String Support: 1 to 24 strings (2V-4.5V) LCD Large Screen Display: Voltage of each string, total voltage, maximum string voltage, minimum string voltage, maximum voltage difference of battery pack, average voltage, balance voltage, number of battery strings Language: Chinese, English (switch) Charging Interface: Type C, DC interface (DC5V). Package List: 1 x Battery Tester 1 x Type C Cable 1 x Extension Board 3 x Electronic Component